Functions
str	_fmt_pa_psi (float pa)
None	_stream_breakdown (str name, float p_tank_pa, float pc_pa, float\|None d_inj, float\|None d_feed)
None	main ()

Variables
	ROOT = Path(__file__).resolve().parents[1]
float	PSI_PER_PA = 1.0 / 6894.76

Detailed Description

Print tank→chamber pressure budget per propellant stream from a runner.evaluate call.

Model used in ``impinging`` / ``pintle`` injectors::

    P_injector = P_tank − ΔP_feed
    ΔP_injector = max(0, P_injector − Pc)

Therefore::

    P_tank − Pc = ΔP_feed + ΔP_injector

``delta_p_remaining`` is the closure residual::

    (P_tank − Pc) − ΔP_feed − ΔP_injector

which should be ~0 Pa when diagnostics are consistent.

Fraction of total tank-to-chamber drop::

    f_feed = ΔP_feed / (P_tank − Pc)
    f_injector = ΔP_injector / (P_tank − Pc)

Example::

    python scripts/report_pressure_budget_breakdown.py \\
      --config configs/impinging_lox_ch4_8000N.yaml \\
      --po-psi 566.8 --pf-psi 780.1 --silent